Chess Champ Against Challengers 1 and 2 in a Simul

Probably the world’s first female chess champion Vera Menchik could have beat the world’s number one and two female challengers simultaneously- only a guess though. In the 19th century Paul Morphy probably could have defeated two of the top ranked players simultaneously, yet if already the champion what would be the point of trying to make other players look like patzers?

I don’t think Robert James Fischer could have beat Spassky and Karpov in a simul. On a good day maybe MC could beat Caruana and Karjakin in a simul- yet that’s a pretty Tal order; MC would lose at least some of the time and draw most of the time in the present era of positional chess.